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1.发明申请公开(公告)号：US20190330539A1
公开(公告)日：2019-10-31
申请号：US16466570
申请日：2017-12-11
Applicant: SABIC Global Technologies B.V.
Inventor： Khalid A. AL-MAJNOUNI , Talal ALSHAMMARI , Nabil ALYASSER , Ahmed ALZENAIDI , Wojciech SUPRONOWICZ
Abstract: A method of producing olefins by catalytic cracking of hydrocarbons is disclosed. The method may include catalytic cracking hydrocarbons in a feed stream that includes the hydrocarbons and the dry gas diluent. The catalytic cracking may be carried out in a process using a train of fixed bed reactors while one or more other trains of fixed bed reactors are being regenerated or are on standby after being regenerated. When the train of fixed bed reactors being used needs regenerating, it is taken out of service and the one or more other trains of fixed bed reactors put in service to carry out the catalytic cracking process. Dry gas instead of steam may be used to reduce the partial pressure of hydrocarbons.
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公开(公告)号：US20230167368A1
公开(公告)日：2023-06-01
申请号：US17995783
申请日：2021-03-22
Applicant: SABIC Global Technologies B.V.
Inventor： Khalid A. AL-MAJNOUNI , Wojciech SUPRONOWICZ , Nabil AL-YASSIR , Talal ALDUGMAN , Ahmed ALZENAIDI
CPC classification number: C10G11/182 , B01J29/08 , C10G11/05 , B01J29/40 , C10G2400/20 , C10G2300/708 , C10G2300/1033
Abstract: Systems and methods for producing light olefin(s) are disclosed. The method includes contacting a catalyst with a coke precursor to form a light olefin selective catalyst, and contacting the light olefin selective catalyst with a hydrocarbon feed under conditions sufficient to catalytically crack at least a portion of the hydrocarbon feed to form a products stream containing a light olefin, here the light olefin selective catalyst is more selective than the catalyst in catalyzing formation of the light olefin by the catalytic cracking of the hydrocarbon feed.
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公开(公告)号：US20210269725A1
公开(公告)日：2021-09-02
申请号：US17250394
申请日：2019-07-26
Applicant: SABIC Global Technologies B.V.
Inventor： Nandini PECHIMUTHU , Wojciech SUPRONOWICZ , Khalid Ali AL-MAJNOUNI , Naif Ali AL-DALAAN , Ahmad Mahdi AL-SHEHRI , Nabil AL-YASSER , Debdut S. ROY , Vidya Sagar GUGGILLA
Abstract: Systems and methods for producing light olefins and aromatics from light naphtha are disclosed. The light naphtha is fed to a first catalyst riser to crack the C5 to C7 hydrocarbons in the light naphtha stream. The cracked naphtha stream is fractionated to produce a stream comprising primarily C4 to C6 hydrocarbons or a stream comprising primarily C5 to C12 hydrocarbons. When the stream comprising primarily C4 to C6 hydrocarbons is fed to the second catalyst riser, the product stream from the second riser comprises light olefins as the main product. When the stream comprising primarily C5 to C12 hydrocarbons is fed to the second riser, the product stream from the second riser comprises aromatics as the main product.
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公开(公告)号：US20210147321A1
公开(公告)日：2021-05-20
申请号：US17047017
申请日：2019-04-11
Applicant: SABIC Global Technologies B.V.
Inventor： Khalid A. AL-MAJNOUNI , Ahmad M. AL-SHEHRI , Naif A. ALDALAAN , Debdut S. ROY , Vidya Sagar GUGGILLA , Nabil ALYASSER , Ahmed AL-ZENAIDI , Wojciech SUPRONOWICZ
Abstract: Systems and methods of producing olefins via catalytic cracking are disclosed. Hydrocarbons of a naphtha stream are isomerized by converting straight chain Cn hydrocarbons to branched Cn hydrocarbons, thereby forming an isomerized naphtha stream. The isomerized naphtha stream is subsequently fed to a catalytic cracking unit such that the hydrocarbons of the isomerized naphtha stream form olefins. In the catalytic cracking process, the reaction temperature can be kept lower than 680° C., thereby increasing the reactivity and minimizing catalyst deactivation in the catalytic cracking process.
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